<template>
  <div class="app-container">
    <h2 style="text-align: center">发布新课程</h2>
    <el-steps align-center process-status="wait" style="margin-bottom: 40px" :active="3" finish-status="finish">
      <el-step :title="title1" icon="el-icon-edit" description="主要填写课程的基本信息和表述信息"></el-step>
      <el-step :title="title2" icon="el-icon-edit-outline" description="填写课程的基本大纲要领"></el-step>
      <el-step :title="title3" icon="el-icon-upload" description="课程提交给管理员审核"></el-step>
    </el-steps>

    <div class="ccInfo">
      <img :src="coursePublish.cover" alt="">
      <div class="main">
        <h2>{{ coursePublish.title }}</h2>
        <p class="gray"><span>共{{ coursePublish.lessonNum }}课时，分为{{ coursePublish.chapterNum }}个章节，共{{ coursePublish.videoNum }}小节</span></p>
        <p><span>所属分类：{{ coursePublish.subjectLevelOne }} — {{ coursePublish.subjectLevelTwo }}</span></p>
        <p>课程讲师：{{ coursePublish.teacherName }}</p>
        <h3 class="red">￥{{ coursePublish.price }}</h3>
      </div>
    </div>

    <div>
      <el-button @click="previous">返回修改</el-button>
      <el-button :disabled="saveBtnDisabled" type="primary" @click="publish">发布课程</el-button>
    </div>

  </div>
</template>

<script>
import course from "../../../api/edu/course";

export default {
  name: "publish",
  data(){
    return{
      title1:'填写课程基本信息',
      title2:'创建课程大纲',
      title3:'最终发布',
      saveBtnDisabled:false,
      coursePublish:{},
      courseId:''
    }
  },
  methods:{
    init(){
      this.title1='已完成'
      this.title2='已完成'
      this.title3='进行中'
      if(this.$route.params && this.$route.params.id){
          this.courseId = this.$route.params.id
        this.fetchCoursePublishInfoById()
      }
    },
    fetchCoursePublishInfoById(){
        course.getCoursePublishVoById(this.courseId)
          .then(res=>{
            if (res.success === true){
              this.coursePublish = res.data.CoursePublishVo
            }
          })
    },
    previous(){
      this.$router.push({path:'/course/chapter/'+this.courseId})
    },
    publish() {
      this.$confirm('确定发布课程, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        course.coursePublish(this.courseId)
          .then(res=>{
            if(res.success === true){
              this.$message({
                type: 'success',
                message: '发布课程成功!'
              });
              this.$router.push({path:'/course/list'})
            }
          }).catch(error=>{this.$message.error('发布课程失败，请联系管理员');})
      }).catch(() => {
        this.$message({
          type: 'info',
          message: '已取消发布课程'
        });
      });
    }
  },
  created() {
      this.init()
  }
}
</script>

<style scoped>
.ccInfo {
  background: #f5f5f5;
  padding: 20px;
  overflow: hidden;
  border: 1px dashed #DDD;
  margin-bottom: 40px;
  position: relative;
}
.ccInfo img {
  background: #d6d6d6;
  width: 500px;
  height: 278px;
  display: block;
  float: left;
  border: none;
}
.ccInfo .main {
  margin-left: 520px;
}

.ccInfo .main h2 {
  font-size: 28px;
  margin-bottom: 30px;
  line-height: 1;
  font-weight: normal;
}
.ccInfo .main p {
  margin-bottom: 10px;
  word-wrap: break-word;
  line-height: 24px;
  max-height: 48px;
  overflow: hidden;
}

.ccInfo .main p {
  margin-bottom: 10px;
  word-wrap: break-word;
  line-height: 24px;
  max-height: 48px;
  overflow: hidden;
}
.ccInfo .main h3 {
  left: 540px;
  bottom: 20px;
  line-height: 1;
  font-size: 28px;
  color: #d32f24;
  font-weight: normal;
  position: absolute;
}
</style>
